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Leica Extender L 1.4x for Vario-Elmar-SL 100-400mm f/5-6.3 (16056)

Model #390019
  • $960.00

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New in box complete with manufacturer's USA warranty. Not previously owned or used.
Essentially new with no signs of use. “Open box.” In manufacturer's packaging with original accessories and instructions. 180-day warranty.
Barely used with virtually no traces of wear. Only the closest inspections will reveal slight use. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Lightly used with limited signs of wear. Exceptionally nice but may have slight wear on finish visible. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Noticeably used with average signs of wear. Shows moderate wear for the age of the item, with the possibility of blemishes and/or minimal dings. Lens glass may have average dust and zoom/focus ring tension may have slight looseness or tightness overall, but will not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Frequently used with above-average wear. May have dents, dings, or finish loss. Lens glass may have small scratches, dust, and blemishes, and zoom/focus ring tension may have moderate looseness or tightness overall, but should not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Heavily used with extensive visible wear. Equipment is rough, with multiple impressions in the finish, excessive finish loss and brassing. Glass will have marks, fungus and/or heavy/cloudy haze which could affect picture quality. Accessories usually not included, unless noted in listing. Not covered under KEH warranty.
Non-functional or damaged. Equipment will not work. Usable for parts. Not covered under KEH warranty and non-returnable.
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With Caps, Case
$960.00
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Leica 1.4x Extender that turns 400mm into 560mm.

The Leica Extender L 1.4x is purpose-built for the Vario-Elmar-SL 100-400mm f/5-6.3, extending its focal range to 140-560mm on the L mount. That extra reach matters in disciplines where closing the distance is not an option. The 1.4x magnification factor costs one stop of light, shifting the aperture range to approximately f/7 at the wide end. For photographers already working at the limits of the 400mm range, the jump to 560mm can mean the difference between a frame that works and one that doesn't.

This extender is a native L-mount accessory, designed to integrate with the Vario-Elmar-SL than adapt around it. The result is a dedicated pairing that preserves the lens's character across the extended focal range. For SL-system shooters who have already committed to the 100-400mm as their long telephoto, this extender is the logical way to extract more reach from glass they already own.

Who It's For

Wildlife photographers working from fixed positions, a hide, a boat, or a blind, gain practical distance from 560mm when subjects won't cooperate at 400mm. Sports shooters covering field events benefit from the tighter framing the 140-560mm range delivers at the long end. Travel and safari photographers carrying a single telephoto can extend their reach without adding a second lens body. Birders shooting in open landscapes where subjects are consistently far off will find the 1.4x factor pulls distant subjects into usable frame sizes.

Key Features

  • 1.4x magnification factor extends 100-400mm lens to 140-560mm
  • Native L-mount design preserves optical character across extended range
  • One stop of light loss shifts aperture to f/7-f/9 range
  • Purpose-built for Vario-Elmar-SL 100-400mm f/5-6.3
  • Leica L mount compatibility with SL-system cameras

FAQ

What focal range does the 1.4x extender give me with the Vario-Elmar-SL 100-400mm?
It extends the lens to 140-560mm. The 100mm wide end becomes 140mm, and the 400mm telephoto becomes 560mm.
How much light do I lose when using this extender?
A 1.4x extender costs one stop of light. The f/5-6.3 aperture becomes approximately f/7 at the wide end and f/9 at the telephoto end.
Is this extender compatible with other L-mount lenses?
The Extender L 1.4x is purpose-built for the Vario-Elmar-SL 100-400mm f/5-6.3. It integrates directly with that lens as a native L-mount pairing.
Does the extender affect autofocus or image quality?
The dedicated L-mount design preserves the lens's character across the extended focal range. AF performance depends on your camera body's capabilities at the reduced light levels.
When would I use this extender instead of just cropping in post?
The extender provides true optical magnification and maintains resolution at 560mm. Cropping loses pixels; this gives you more subject size in the frame before any digital intervention.
How does a 1.4x extender compare to a 2x?
A 1.4x adds one stop of light loss; a 2x costs two stops. For situations where you need reach but can't afford the aggressive light penalty of a 2x, the 1.4x strikes that balance.
SpecificationValue
Focal Length100-400mm
Max Aperturef/5-6.3
MountLeica L

This description was generated using AI based on KEH's internal product standards, product expertise, and knowing what customers care about most. While we strive for accuracy, details may vary by individual item.

Brand Name Leica
Lens Mount Leica L-Mount